30 Mbps wireless data transmission using an equalized 5-MBaud M-QAM testbed

Cho, K.H.; Putnam, J.; Berg, E.; Daneshrad, Babak; Samueli, H.

doi:10.1109/icupc.1997.625490

Proceedings of ICUPC 97 - 6th International Conference on Universal Personal Communications

DOI: 10.1109/icupc.1997.625490

|View full text |Cite

30 Mbps wireless data transmission using an equalized 5-MBaud M-QAM testbed

K.H. Cho¹,

J. Putnam²,

E. Berg³

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Publication Types

Select...

Article1

Relationship

Self Cite1

Independent0

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The testbed is fully functional and combines real-time adaptive equalization with a smart antenna array. In [18] and [19], the same research group reported on field trial measurements using a high-speed 5 Mbaud (the unit of baud is defined as "symbols/s") multilevel QAM (M-QAM) equalized wireless testbed. Building on this work, a highly versatile M-QAM testbed system using equalization and a smart antenna array was designed around the DiverQAM chip fabricated at University of California, Los Angeles (UCLA) [20].…”

mentioning

confidence: 99%

Field measurements of an indoor high-speed QAM wireless system using decision feedback equalization and smart antenna array

Frigon

Daneshrad

2002

IEEE Trans. Wireless Commun.

Self Cite

View full text Add to dashboard Cite

This paper reports on field measurements of point-to-point indoor high-speed (10 Mbit/s to 30 Mbit/s at 5 Mbaud) wireless communications realized using a flexible multilevel quadrature amplitude modulation (M-QAM) testbed that features real-time equalization and smart antenna-array technology. The results from an extensive set of measurements, 59 262 trials in all, performed without cochannel interference under various receiver configurations and wireless environments are presented and analyzed. The results underscore the dramatic potential for a system that optimally combines equalization and a smart antenna array. For example, using only 10 mW of transmit power, the system delivered 30 Mbit/s at an uncoded bit error rate (BER) of 10 3 with 5% outage at a coverage radius of 20 m. For a lower data rate of 10 Mbit/s, the coverage radius was increased to 32 m, the uncoded BER dropped below 10 7 , and the outage improved to 1%. The field measurements indicate that a 4-tap feedforward-filter decision-feedback equalizer with eight feedback-filter taps is sufficient to mitigate the intersymbol interference for typical indoor environments. They also show a significant gain when using a smart antenna array. For example, when transmitting between rooms at a 2% outage probability, the signal-to-noise ratio (SNR) improves by 8.3 dB when using two antennas instead of one antenna. Doubling the number of antennas to four provided an additional SNR improvement of 5.2 dB. The paper also presents simulation results that confirm the performance trends observed from the field measurements.

show abstract

mentioning

confidence: 99%

Field measurements of an indoor high-speed QAM wireless system using decision feedback equalization and smart antenna array

Frigon

Daneshrad

2002

IEEE Trans. Wireless Commun.

Self Cite

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

30 Mbps wireless data transmission using an equalized 5-MBaud M-QAM testbed

Cited by 1 publication

References 9 publications

Field measurements of an indoor high-speed QAM wireless system using decision feedback equalization and smart antenna array

Field measurements of an indoor high-speed QAM wireless system using decision feedback equalization and smart antenna array

Contact Info

Product

Resources

About